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Displaying 51 - 75 of 241

Structure and Properties of a-NaFeO 2 -type Ternary Sodium Iridates

February 1, 2014
Author(s)
Kristen Baroudi, Cindi Yim, Hui Wu, Qingzhen Huang, John H. Roudebush, Eugenia Vavilova, Hans-Joachim Grafe, Vladislav Kataev, Bernd Buechner, Huiwen Ji, Changyang Kuo, Zhiwei Hu, Tun-Wen Pi, Chiwen Pao, Jyhfu Lee, Daria Mikhailova, Liu Hao Tjeng, R. J. Cava
… are reported for layered compounds of the type Na 3-x MIr 2 O 6 and Na 3-x M 2 IrO 6 , where M is a transition metal … Mn 0.63 Ir 0.37 O 2 , Na 0.80 Fe 2/3} Ir 1/3} O 2 , Na 0.92 Ni 1/3} Ir 2/3} O 2 , Na 0.86} Cu 1/3} Ir 2/3} O 2 , and … temperature specific heat measurements (to 2 K) on Na 0.92 Ni 1/3} Ir 2/3} O 2 indicate the presence of a broad …

Transition Energies of the D-lines in Na-like Ions

June 5, 2013
Author(s)
John D. Gillaspy, Dmitry D. Osin, Yuri Ralchenko, Joseph Reader, S A. Blundell
… beam ion trap (EBIT) was used to measure the D1 (3s-3p1/2) and D2 (3s-3p3/2) transitions in Na-like ions of xenon, … the isoelectronic sequence from argon (Z=18) to uranium (Z=92), taking into account some higher order terms in the QED … reliably represent the isoelectronic sequence from Z=18 to 92. The agreement of theory and experiment for the D1 line of …

Uncertainty budget for the NIST Electron Counting Capacitance Standard, ECCS- 1

November 21, 2007
Author(s)
Mark W. Keller, Neil M. Zimmerman, Ali L. Eichenberger
… of electrons and measuring the resulting voltage, and 2) using a capacitance bridge traceable to the SI farad. We … they agree within a relative standard uncertainty of $9.2 \times 10^-7}$. This comparison closes the quantum …

Status Report of the Second Quarter, FY92 (January 1 through March 1992)

May 1, 1992
Author(s)
Howard Bloom
An emerging information standard will make products more affordable to develop, manufacture, and maintain. The standard is STEP (STandard for the Exchange of Product model data). U.S. development efforts are collectively called PDES (Product Data Exchange

Self-Energy Screening in Two-Electron Ions

October 1, 2001
Author(s)
Paul Indelicato, Peter Mohr
… the direct term. We evaluate the energy shift due to a 1S/2, 2S/2, 2P/2, or 2p3/2, electron, for nuclear charge Z in the … range 5 less then or equal to} Z less then or equal to} 92. A detailed comparison with other calculations is made. …

High Speed Quantum Key Distribution over Optical Fiber Network System

May 28, 2009
Author(s)
Xiao Tang, Lijun Ma, Alan Mink
NIST has developed a number of complete fiber-based high-speed quantum key distribution QKD)systems that includes an 850 nm QKD system for a local area network (LAN), a 1310 nm QKD system for a metropolitan area network (MAN), and a 3-node quantum network
Displaying 51 - 75 of 241
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